CN Patent

CN101772490A — 纯化形式的曲唑酮和盐酸曲唑酮

Assigned to Angelini Acraf SpA · Expires 2010-07-07 · 16y expired

What this patent protects

生产曲唑酮或盐酸曲唑酮的方法，包括下列步骤：(a)制备在至少一种有机溶剂中包含曲唑酮的有机相；(b)制备包含至少一种碱性化合物的水相；(c)混合所述水相与所述有机相；(d)在至少40℃的温度下加热至少30分钟；(e)回收所述曲唑酮；且任选(f)用盐酸处理所述曲唑酮而得到盐酸曲唑酮。曲唑酮或盐酸曲唑酮包含低于15ppm的烷基化物质，且药物组合物包含所述盐酸曲唑酮。

USPTO Abstract

生产曲唑酮或盐酸曲唑酮的方法，包括下列步骤：(a)制备在至少一种有机溶剂中包含曲唑酮的有机相；(b)制备包含至少一种碱性化合物的水相；(c)混合所述水相与所述有机相；(d)在至少40℃的温度下加热至少30分钟；(e)回收所述曲唑酮；且任选(f)用盐酸处理所述曲唑酮而得到盐酸曲唑酮。曲唑酮或盐酸曲唑酮包含低于15ppm的烷基化物质，且药物组合物包含所述盐酸曲唑酮。

Drugs covered by this patent

trazodone-hydrochloride (TRAZODONE HYDROCHLORIDE)

Patent Metadata

Patent number: CN101772490A
Jurisdiction: CN
Classification: —
Expires: 2010-07-07
Drug substance claim: No
Drug product claim: No
Assignee: Angelini Acraf SpA
Source: FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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